baber/WOPTO huggingface dataset:
Patent DE-4218205-A1 (DE)
Title: Controlling start of screw compressor to be driven by three-phase motor - measuring pressure produced by rotary movement of screw compressor and stopping drive motor if pressure is in contrast compared to normal pressure
Inventor: HALKOLA TIMO
IPC: F04C28/06
Filed: 1992-06-03
Abstract: The pressure resulting between the compressor (1) and a screw chamber of the compressor and a non return valve (11), is sensed in a suction or outlet duct (8; 10) connected directly to it, with the starting of the screw compressor driven by the 3-phase motor (2). The system includes a pressure sensor (18), which is an isolating switch controllable by the effect of the pressure. A switch (5) has a contactor for connecting the motor (2) to the electrical mains, and the control current of the contactor is connected to flow through the pressure sensor (18), so that the pressure sensor under the effect of a faulty pressure switches off the control current of the contactor, which disconnects the motor from the electrical mains. The pressure sensor (18) is adjusted to sense the pressure between the non return valve (11) in the outlet duct (10) of the compressor and the compressor, and the pressure sensor (18) functions, if the pressure fails to reach the atmospheric pressure. ADVANTAGE - Prevents rotation of compressor in wrong direction of rotation reliably, and system is simpler, cheaper and more reliable than known methods and systems.
Patent DE-4221418-A1 (DE)
Title: Cam profile for IC engine valve operation - has re-defined profile calculation for area from cam peak to flank.
Inventor: DESCHLER GERHARD DIPL ING
IPC: F01L1/08
Filed: 1992-06-30
Abstract: A cam for valve control in a rotating piston engine operates the valve via a flat tappet against the force of a closing spring. The cam profile is determined as:  psi =rN/(rG+z(0)) where psi (x) = hydrodynamic reference; rN = cam radius of curvature; rG = pitch circle radius; z = cam lift. In order to determine the characteristic over the critical region 0<=x<=xE, where xE is the cam angle at the end of the cam peak, the following is used: (x) = r(x)/rG + z(x); x = cam angle. The function has the value at x=0 and a maximum at x=xE of = (1+b), where 0.1<=b<=0.3 and is chosen between 0.15<=0.25. The cam profile from the peak is determined by: z(x)=(z(o)+rG).cos square root(1- psi o(1+Kx)x) - rG USE/ADVANTAGE - Cam profile for IC engine valve gear in which pressure from cam point to flank is reduced, without affecting lubrication.
Patent DE-4222270-A1 (DE)
Title: Optical fibre amplifier circuit, e.g. for radio and television distribution network - reduces output power to safe level if fibre is broken and detects when fibre is reinstalled
Inventor: KOHN ULRICH
IPC: H01S5/50
Filed: 1992-07-07
Abstract: The circuit (12) is connected to an optical transmitter (S) and an optical receiver (E). It has a fibre reinforcer (17) and a pump source (33) connected to that. The pump source (33) has an associated control circuit (28). This regulates the optical power (NA) from the fibre reinforcer (17) to a first given value. A first alarm signal (S1) is given out from the receiver (E) if no optical signal is present and is supplied to the optical amplifier circuit (12). The control circuit (28) is responsive to this signal (S1) to regulate the optical output power of the fibre reinforcer (17) to a second smaller value. ADVANTAGE - Ensures high transmission reliability and safety.
Patent DE-4227137-A1 (DE)
Title: Filter for polymer melt, esp. in extruder - comprises two filter plates with coincident flow channels enclosing filter mesh and forced together by adaptor ring
Inventor: RIELMANN HANS-GEORG
IPC: B29C48/03
Filed: 1992-08-17
Abstract: A filter assembly for fitting to lines carrying plastic melt under pressure, esp. an extruder includes a filter element (5) to which pressure is applied by an adaptor (21) to effect a seal against the housing (1). Pressure is valid by axial movement of a threaded ring (26) behind the adaptor (21) and operated through a lever system outside the housing (1). The filter element (5) comprises two filter plates (30,31) the flow channels of which are aligned in the flow direction. Movement of the filter plates (30,31) at right angles to the flow is prevented by a circumferential projection on one plate (30) and a corresponding recess on the other plate (31). A filter mesh is located between the first and second filter plates (30,31) and covers the flow channels. The filter mesh is flat, has a round or rectangular profile and consists of rectangular wire mesh. Flow channels corresponding to round mesh filters are on concentric circles. Channels corresponding to rectangular mesh filters are located at the intersecting points of a rectangular grid pattern. USE/ADVANTAGE - In lines containing plastic melt under pressure, esp. an extruder based on Patent P4105867.4-16. Prevents loosening of filter mesh wires at the edges giving better filtering and avoiding broken wires entering the melt.
Patent DE-4227932-A1 (DE)
Title: System for removal of shell guide rings - with recessing tool introduced tangentially into guide ring of nonrotating shell
Inventor: WEBER HANS-JOACHIM
IPC: F42B33/06
Filed: 1992-08-22
Abstract: The method involves using a stationary shell (1), with a recessing tool (13) being introduced tangentially into the guide ring (10) as far as its bottom. The tool is then advanced so that its tip (14) slightly passes the highest tangent point (16), after which is it retracted to this point. The shell is then rotated against the tool tip to remove the guide ring. A holder of a tangentially movable ejector tool is adjustable against the recessing tool in two planes lying at an angle to one another. USE/ADVANTAGE - For removal of guide rings from artillery shells.
Patent DE-4231452-A1 (DE)
Title: Radial turbocompressor with opposite rotation outlet housing - has disc diffusor guide blades rising from inner to outer boundary dia. in impeller rotation sense
Inventor: KOTZUR JOACHIM DR ING
IPC: F04D17/12
Filed: 1992-09-19
Abstract: Behind the impeller (2) is fitted the disc diffuser with guide blades (4), followed by an outlet collector (7) with tangential outlet branch (8). The guide blades of the disc diffusor rise from their inner to outer boundary dia. in the direction of the impeller rotation. The outlet branch is tangentially coupled to the collector against the impeller rotation sense. At the edge (9), facing the collector, the outlet branch is rounded. The rounding radius (R) amounts to 10 to 30% of the impeller dia., pref. 20%. USE/ADVANTAGE - For natural gas compression in trunk gas pipelines, with versatile applicability.
Patent DE-4235616-A1 (DE)
Inventor: GRIMMEISEN SEBASTIAN
IPC: H04L12/44
Filed: 1992-10-22
Abstract: In a data communication system, in particular for motor vehicle, the transmission lines that lead to the individual terminals are interconnected in a passive network node in a star configuration and are there provided with frequency-dependent attenuation means, preferably ferrite beads. Good characteristic impedance adaptation is thus obtained for suppressing high-frequency disturbing signals, while retaining free choice of the system parameter for the steady data symbolic state. The system may be enlarged by means of additional star networks into a tree or meshed structure.
Patent DE-4239917-A1 (DE)
Title: Hollow space testing arrangement, e.g. for channels and pipelines - has laterally flexible, axially stiff feed mechanism with external friction reducing rollers
Inventor: ERTL HERBERT DIPL ING
IPC: H02G1/08
Filed: 1992-11-27
Abstract: The testing arrangement has at least one test head and a feed mechanism connected to the test head which moves it into the space under inspection. The feed mechanism consists of a laterally flexible but axially stiff hollow body. The exterior of the hollow body (2) has a number of roller bodies (3) which can be arranged in cages (4). The roller bodies can be cylindrical rollers whose axes of rotation are perpendicular to the longitudinal axis of the feed mechanism. USE/ADVANTAGE - For testing hollow spaces, e.g. in channels, pipelines and chimneys. Considerably reduces frictional resistance during both insertion and withdrawal of feed mechanism.
Patent DE-4240092-A1 (DE)
Title: Dissolving and diluting polymeric flocculating agents - using closed circuit fed with the agent and with large vol. of water so that mix is pumped through and drawn off at suitable rate
Inventor: IMHOF RAINER DR
IPC: B03D3/06
Filed: 1992-11-28
Abstract: Polymeric flocculating agents are dissolved and diluted by taking an aqueous gel of emulsified agent (emulsion polymer), diluting with much water and thereby greatly stretching the molecular filaments of the flocculating agent. In the process the emulsion of the agent plus the water of dilution are fed at least once through a mixing reactor with considerably applied energy; a part of the finished material is then taken out fro use whilst the remainder is returned to the reactor in a closed circuit circulation. ADVANTAGE - The procedure reduces "mating" time of the solution but brings the solution to optimum degree of "maturity". EMBODIMENT shows an example; a mixing reactor (10) is e.g. a packed column connected to a pump (13) in a closed circuit where emulsified polymer flocculating agent taken by a pump (18) from a tank (19) flows continuously through a valve (16) into the circuit (12). Water diluent is also fed in through a valve (17) continuously, using sufficient water e.g. to dilute to a ratio of 1,000;1. A total of e.g. 100 1/hr diluted liq. is fed in and is also removed through the valve (14) for usage. The soln. is circulated e.g. three times in the circuit. To use a reactor (10) of only 2 - 3 capacity the system is pumped (13) to 3 - 5 pressure.
Patent DE-4242373-A1 (DE)
Title: Appts. for cutting fabric laminates accurately
Inventor: NASU NOBUO
IPC: B26D7/20
Filed: 1992-12-16
Abstract: Laminate cutting appts. has longitudinal reciprocating supporting belt mounted on vertically movable support bars with movable recess forming member co-operating with reciprocating cutter head. First suction system connected through vent holes in the supporting belt holds the body of the laminate while the second suction system connected to the front and rear sides of the movable recess holds the laminate parts to be cut.     Pref. the laminate (88) on the movable supporting belt (3) is covered with air impermeable sheet (89). Air is removed through suction ports (37,44) formed in the upper surfaces of many belt support plates (9) through first suction system (34). Second suction system (35) removes air from around the sides of the movable recess (6) formed by the recess forming rollers (32,33) in the belt (3) through vent holes (3a) in the belt. The laminate supported by the belt (3) is cut by movement of the reciprocating cutter (26).
Patent DE-4243716-A1 (DE)
Title: Bearing end plate for small DC commutator motors
Inventor: LUNGU CORNELIU DIPL ING
IPC: H02K5/22
Filed: 1992-12-23
Abstract: A small electrical d.c. motor has a commutator (16) with a projecting spindle (14) located in a bearing (13) that is secured in an end plate (27),which is produced with an internal cladding (21) that is formed to provide an insulated guide for brushes (19) that are spring-loaded against the commutator elements. The brushes are engaged by electrically connecting elements (24) that engage pins (25) projecting from the end cap. The insulated cladding is formed in an injection moulding process.
Patent DE-4243805-A1 (DE)
Title: Appts. for solid particle prodn.
Inventor: STEPPAN HORST
IPC: B04B15/02
Filed: 1992-12-23
Abstract: The assembly to produce solid particles of defined character and structure has one container (1) with a heated mantle (1a) connected (a,b) through a valve (13) to a heater (5), and also connected (l,m) to a controlled thermostat (15). A further container (2) with a heating mantle (2a) is connected (c,d) through a valve (14) to a heater (6) and also connected (n/o) to a controlled thermostat (16). The heaters (5,6) are connected (e,f) to the intensive mixing and homogenising station (7). The intensive mixing and homogenising station (7) is connected (g) through an integrated force field generator (8) to the centrifugal separator (9) with a controlled drive (10) and separating components (9a). The centrifugal separator (9) is linked (i) to a measurement monitor (11) and also has an outflow (h). An external thermostat (12) is linked (j) to the separating components (9a) of the centrifugal separator (9), and a channel (k) leads back to the thermostat (12). All the monitoring points (l'-n'), for measurement and control of process values, are linked to a computer (17).
Patent DE-4303272-A1 (DE)
Title: Process for purifying waste air by a catalytic system
Inventor: HEINLEIN JOERN DR
IPC: B01D53/86
Filed: 1993-02-05
Abstract: Waste air is passed over a mineral substrate from the class of the titanium oxides, which is irradiated by short-wave electromagnetic radiation. Inorganic and organic chemical compounds contained in the waste air are chemically changed by this process in such a way that, when contacted with aqueous media or moist solids in a downstream process step, they can be removed from the air.
Patent DE-4304847-A1 (DE)
Title: Operating safety airbag igniter control unit for motor vehicle passenger - using data processor which continually performs self diagnosis and displays abnormality when fault detected in processor or memory
Inventor: BEKKI KEISUKE
IPC: G01P21/00
Filed: 1993-02-17
Abstract: A data processor is used to detect signals from a collision sensor.The data processor (1) continuously carries out a self diagnosis function for determining possible fault in the data processor or its memory when no signal is received from the sensor (3). The data processor transmits an abnormality signal to an indicating unit if a failure is determined. The data processor pref. carries out an initial diagnosis function of at least the sensor, the airbag igniter and the indicator unit. The self diagnosis function is carried out using two versions of a self diagnosis program, and the results are compared. ADVANTAGE - Ensures sufficient fail safety for operation of air bag. Only one CPU module is used without enlarging size of hardware.
Patent DE-4310915-A1 (DE)
Title: Solid state image sensor with charge coupled device - has double layer structure with surface channel zone on buried channel zone in semiconductor substrate
Inventor: LEE SEO KYU
IPC: H01L27/148
Filed: 1993-04-02
Abstract: A charge transfer path of double-layer structure is obtained by forming a surface channel region (33) on a buried channel region (32) in the semiconductor substrate (31). The surface channel region has an opposite conductivity w.r.t. the buried channel region. The surface channel region of the double-layer structure serves for carrying away a dark current generated at the boundary faces between the substrate and a gate insulating film, when the buried channel region serves for transmission of optical signal charges. When negative and/or positive driver voltages are applied to the transfer electrodes, this does not result in an increase of the dark current. USE/ADVANTAGE - For CCD systems, with high signal-noise ratio, reduction of dark current, and increase of the transmitted signal charge.
Patent DE-4311839-A1 (DE)
Title: Microcooling device for an electronic component
Inventor: GROMOLL BERND DR
IPC: H05K7/20
Filed: 1993-04-15
Abstract: The microcooling device contains a first Si body (2a), in which recesses having obliquely extending side walls (6) are incorporated on a flat side. According to the invention, another, correspondingly structured Si body (2b) is provided and the first and second Si bodies (2a, 2b respectively) are connected to one another on their structured surfaces (3a) to give a heat exchange element (8) with the formation of cooling channels (9) for a coolant, in particular by means of a silver-based conductive adhesive (7). <IMAGE>
Patent DE-4315131-A1 (DE)
Title: Mounting rack for an electronic appliance
Inventor: KRAEMER DIETER
IPC: H05K7/14
Filed: 1993-05-07
Abstract: The mounting rack (1) consists of an upper part (5), a rear wall (6) and a lower part (7), an upper projection (9) and a lower projection (10) being provided in this case, which is formed by the upper part (5), which is bent upwards parallel to the rear wall (6) and by the lower part (7), which is bent downwards parallel to the rear wall (6), and the correspondingly bent rear wall (6). A common connecting printed circuit board (mother board) (13) is provided for all the printed circuit boards (20), which connecting printed circuit board (13) is fitted with the printed circuit board plugs (14) and, on that part which projects into the projections (9, 19), with the connecting plugs (15) which are screwed to the mounting rack (1). The upper part (5), the rear wall (6) and the lower part (7) form an integral metal profiled part of the mounting rack (1), which can be completely closed by sheet-metal sides and a metal cap (32), so that no interference radiation can be emitted outwards by the electronic components which are located on the printed circuit boards (20). <IMAGE>
Patent DE-4322502-A1 (DE)
Title: Dough processing device
Inventor: WOLLENWEBER MARGRET
IPC: A21C3/02
Filed: 1993-07-06
Abstract: The invention relates to a device for processing dough which has a first film (1, 1') and a second film (2, 2') the first film (1, 1') having lines (11, 12, 13, 14) which correspond to the outline of a desired layer of dough, and it being possible to roll out a piece of dough between the films in such a way that its outline corresponds to one of the lines (11, 12, 13, 14). <IMAGE>
Patent DE-4322631-A1 (DE)
Title: Connector for C-profiles
Inventor: KNAUF ALFONS JEAN
IPC: F16B7/04
Filed: 1993-07-07
Abstract: A connector (1) for C-profiles (2) comprises a sheet-metal profile piece which can be pushed into the ends of the C-profiles (2) to be connected and rests, by means of two bending edges (4), on the inner side of the web surface (5) of the C-profiles (2). Between said bending edges (4), it exhibits a central section, raised at a distance above the web surface (5) of the C-profiles (2), and engages, by means of the two border edges (10) of its border strip (9), into the two inner corners (11), located opposite the web surface (5), of the C-profiles (2). The two border strips (9) rise in each case obliquely outwards, from the bending edges (4) resting against the web surface (5), to the border edges (10) engaging into the inner corners (11) of the C-profiles (2). The distance between the two bending edges (4) resting against the web surface (5) of the C-profiles (2) is considerably smaller than the width of the web surface (5). <IMAGE>
Patent DE-4325452-A1 (DE)
Title: Process and apparatus for hot-dip galvanising iron parts
Inventor: WILLECKE THEODOR
IPC: C23C2/06
Filed: 1993-07-29
Abstract: In a process and an apparatus for hot-dip galvanising iron parts, such as ribbed tubes (9), heat-transmission parts and the like, the iron part (9) is dipped on a support (6) into a zinc bath (3), the support (6) being shaken in the submerged state, lifted out of the zinc bath and shaken again. To simplify the process and to simplify the apparatus construction, a temperature of between 490 degrees and 600 degrees C is maintained in the zinc bath, which is arranged in a ceramic trough body, and the iron part (9) is covered for heat insulation by means of a covering hood (10) as it is lifted out of the zinc bath (3) and during the subsequent shaking operation. <IMAGE>
Patent DE-4332432-A1 (DE)
Title: Stacker crane control system - has upper and lower photoelectric sensors side by side in vertical position on lift side
Inventor: NAKAMURA HARUHIKO
IPC: B66F9/075
Filed: 1993-09-23
Abstract: A level detector device (3,4) is provided and a lifting platform is located on an upper or a lower level in a fork zone, in which the fork can move in the extended state. A drive extent detector (9,10) detects a drive extent for a linear lifting part. A memory device (11) stores a drive extent value in a predetermined position, and a control unit (8) controls the operation of the linear lifting part on the basis of the stored value. The value stored in the memory (11) is updated when the lifting platform moves vertically between the upper and lower levels of the fork zone. The extent of the fork zone is equal to the length of a plate in a vertical direction, which is provided on a mast along which the lifting platform moves. The level detector (3,4) has an upper and a lower photo-electric sensor for detection of the plate. USE/ADVANTAGE - The stacker crane control permits a precise determn. of a stopping position.
Patent DE-4334900-A1 (DE)
Title: Process for treating and utilising biomasses and biogenic sludges, in particular sewage sludges
Inventor: EDER HANS
IPC: C05F7/00
Filed: 1993-10-13
Abstract: The object underlying the invention is to specify a process which is suitable for the simple and low-energy treatment of sewage sludges or other biological sludges and, without use of thermal energy, leads to a product having a low water content and high mechanical strength and high fertiliser value. The product is also to be odour-free, storable, pourable and easily dosable in order to be directly usable in agriculture and to have a long-lasting fertiliser action. The object is achieved with a process for producing fertilisers or soil improvers from sewage sludge, in which the predewatered sewage sludge is mixed with sheet-silicate, swellable binder and fine-grained to coarse-grained stone dust (flour), aerated concreted flour or sawdust. The mixture is mixed by rollers in a high-pressure agglomerisation apparatus and is pressed through pressing ducts with liberation of frictional energy, temperatures of more than 100 DEG C arising, the product is sanitised and an organic/inorganic structural matrix is formed. Subsequent drying is not necessary.
Patent DE-4340093-A1 (DE)
Inventor: RAEHSE WILFRIED DR
IPC: B01D3/34
Filed: 1993-11-24
Abstract: PCT No. PCT/EP94/03786 Sec. 371 Date May 23, 1996 Sec. 102(e) Date May 23, 1996 PCT Filed Nov. 15, 1994 PCT Pub. No. WO95/14520 PCT Pub. Date Jun. 1, 1995A process for separating a multi-component mixture containing solid or liquid organic components by treating the mixture with a gaseous entraining agent comprising a superheated carrier fluid containing a lower monohydric alcohol or a lower monohydric alcohol and water to cause constituents of the multi-component mixture to become entrained in the gaseous entraining agent, and separating the gaseous entraining agent containing constituents of the multi-component mixture from the multi-component mixture.
Patent DE-4400836-A1 (DE)
Title: Improving the strength s of lightweight wood parts
Inventor: AUER GERHARD
IPC: B27K5/06
Filed: 1994-01-14
Abstract: Improving the surface strength of wood with an initial density less than or equal to 0.5 g/cm<3>, comprises impregnating the machined wood part having a moisture content less than or equal to 12%, for at least 5 mins. in a bath of self-curing oil, and then drying and opt. carrying out further work on the surface.  Also claimed are wooden parts, typically having an initial density less than or equal to 0.5 g/cm<3> and whose surface layers contain at least 0.01 (0.1) g/cm<3> cured oil up to a depth of at least 10 mm.  Pref. the parts are impregnated for at least 10 mins. in the bath at a temp. of at least 40 (60) deg C and then dried for at least 24 hrs. The parts are ground following drying and post-treated with a self-curing oil following drying or grinding. The oil is a vegetable oil, pref. linseed oil, and at least 600 (800) ml oil per m<2> wood surface area is absorbed. The wood is poplar.